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/*
 * Copyright (C) 2012 The Guava Authors
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.fitbur.guava.common.cache;

import com.fitbur.guava.common.annotations.GwtCompatible;

/**
 * Abstract interface for objects that can concurrently add longs.
 * 
 * @author Louis Wasserman
 */
@GwtCompatible
interface LongAddable {
  void increment();
  
  void add(long x);
  
  long sum();
}